Heating-stove



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HEATING STOVE.

Patented Sept. 8, 1885.

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2 Sheets-Sheet 2.

(No Model.)

- J. OKEEFE.

HEATING STOVE.

Patented Sept. '8, 1885..

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UNITED STATES PATENT OFFICE.

JOHN OKEEFE, OF ST. LOUIS, MISSOURI.

HEATING-STOVE.

QJPECIFICATION forming part of Letters Patent No. 325,857; dated September 8, 1885.

Application filed August 19, 1884.

To all whom it 71mg concern.-

Be it known that I, JOHN OKEEFE, of St. Louis, Missouri, have made a new and useful Improvement in Heating-Stoves, of which the following isa full, clear, and exact description, reference being had to the annexed drawings, making part of this specification, inwhich Figure-11 is a side elevation of a heating stove in which the improvement is embodied; Fig. 2, a rear elevation, portions of the shell being broken away to exhibit the interior construction; Fig. 3, a vertical longitudinal section, and Figs. 4 to 11 details upon an enlarged scale, Fig. 4 being a top view of the hopper and hopper-bottom, the hopper-bottom being closed; Fig. 5, a top view of the hopper and hopper-bottom, the hopper-bottom being opened; Fig. 6, a side elevation of the hopper and hopper-bottom, the hopperbottom being closed; Fig. 7, a side elevation of the hopper and hopper-bottom, the hopper-bottom being opened; and Fig. 8, a horizontal section on the line 11 11 of Fig. 3.

The same letters of reference denote the same parts.

The present invention is an improvement in soft-coal heating-stoves in which the draft is upward through the fire-box into a combustion chamber above the burning fuel. From such a combustion-chamber and from a soft-coal fire the smoke and dust are apt to escape into the room whenever the door at the side of the stove is opened for the introduction of fuel.

To obviate this difficulty is the aim of the present improvement, which relates mainly to the means for introducing the fuel into the combustion-chamber.

Aside from its improved features, the stove is of the customary form, the combustion-chamber A;--the fire-pot B, the grate, the ash pit D, and the flues E F, saving that the entrance to them is below the fuel-hopper, being'such as are commonly employed in many forms of heating-stoves. Instead, however, of extending the combustion-chamber in the ordinary way upward, so that it comprises all the space beneath the top of the stove, I form a compartment within the stove above the combustion-chamber, into which a charge of fuel may be introduced, there held, and thence,

the bottom 9.

(No model.)

in a body, dropped through the combustionchamber into the fire-pot beneath. This compartment may be termed a hopper. It should be so constructed as to uphold the fuel a sufficient distance above the fire-pot, so that when the fuel is discharged from the hopper it shall fall entirely beneath and clear of the lower end of the hopper, and thence through an intervening space into the fire-pot. The

hopper should also be so made that when it is desired to deposit the fuel it can be dropped at once. i

'G, Figs. 2, 3, 4, 5, 6, 7,-represents the hop-' per. As shown, it is formed by. means of the flange g and the bottom y. The flange y depends from the top H of the stove, and the bottom 9 is journaled at g g to the shell I of the stove, so that the bottom can be swung from the position shown in Figs. '4, 6 upward into the positionshown in Figs. 5,-7, and in the broken lines in Fig. 3.

In operation the cover J is removed and the fuel is placed in the hopper, resting upon The cover is then closed, and the bottom is then, and by any suitable meanssuch as a crank, g -applied to one of the journals 9', swung aside, and the fuel allowed to fall from the hopper into the fire-pot. The

fuel-charge is thus dropped at'once onto the flue; for the course of the heated products of combustion is not changed by this mode of 8 introducing the fuel, but constantly sets toward the flue E. The cover J is perforated to admit an air-current, which passes downward, as indicated by the arrows, through the hopper and through the hopper-bottom 9 into the combustion-chamber, where it unites with the products of combustion escaping into the flue E.

The perforating of the hopper-bottom, or making it in some open-work form, and the provision for the downward air current through the hopper-bottom,as described, are important features of the construction, as thereby the bottom 9, or whatever support is employed for upholding the fuel in the hopper, is kept from burning out, and at the same time air is delivered downward into the combustion-chamber, where it is of material aid in promoting the combustion of that portion ofthe fuel which passes upward from the fire-pot, and which otherwise would pass off in an unconsumed state.

I do not desire in forming the hopper to be confined to the use of the flange 9, nor to the particular mode shown of making and operating the hopper-bottom. Any meanssuch, for instance, as a flange projecting inwardly from the shell I of the stovemay be employed, in connection with a movable bottom or support for the fuel, to form such a hopper as I have described. The bottom may also be made to swing or made to slide, and it may be a perforated plate, such as shown in Figs. 3, 4:, 5, 6, 7, or it may be a grate; for the bottom is a device which serves. to uphold the fuelcharge above the fire-pot, and which can be manipulated to deposit the fuel charge at once in the fire-pot. It should be a finely-perforated bottom, 9, substantially such as is exhibited in the drawings, as thereby too free a downward flow of airis prevented.

The course of the products of combustion from the combustion-chamber is, when the I direct draft is used, past the damper K, which is then turned back, as indicated by the broken lines in Fig. 3, across theupper end of the the cover N and by turning this door backward, as indicated by the broken lines in Fig. 3, access from above is had to the descending flue, so that item be cleaned; for the flue E is liable to become clogged with soot, and, as hitherto constructed, there has been no provision by which a cleaning-brush could be readily introduced into it. The door M is preferably so constructed that the cover N cannot be replaced without necessitating the previous closing of the door M.

I claim- 1. A heating stove having a perforated cover or top, and also a perforated support above or in the upper part of the combustionchamber, upon which the fuel can be placed, and thence dropped through the combustionchamber into the fire-pot, as described.

2. ,A heating stove having a perforated cover or top, and also a hopper above or in the upper part of the combustionchamber, said hopper being suitable for receiving fuel, and being provided with a perforated removable bottom, as and for the purposes described.

3. The combination, inthe herein-described heatingstove, of the fire-pot, the descending flue, E. the ascending flue F, the door M, the cover N, and the damper K, said damper being used to close the entrance into the ascending flue, and said door being used to open the descending fluc at its upperend, substantially Witnesses: G. D. MooDY, J. WV. Home. 

